Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Maureen E Callnan, PMHNP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1740332949

Maureen E Callnan, PMHNP is a Certified Clinical Nurse Specialist (Cns) in Portland, Maine. Qualified in 2001, 25 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Maine.

Years since qualifying
25
Licensed in
ME
In the registry since
2007
What do these letters mean?
PMHNP — Psychiatric-Mental Health Nurse Practitioner
A nurse practitioner specialising in mental health, able to prescribe psychiatric medication.

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Practice location Address checks out

449 Forest Ave Ste 211
Portland, ME 04101-2008
Phone: (207) 773-1966
Fax: (207) 292-2606
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence CNP111003 (ME)

Record details

NPI number1740332949
Entity typeIndividual (Type 1)
GenderFemale
Credentials PMHNP
Sole proprietorYes
NPI enumeratedJanuary 17, 2007
Last updated in NPPESFebruary 17, 2026
Certification dateFebruary 17, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCERTIFIED CLINICAL NURSE SPECIALIST (CNS)
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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